Added a new parameter in Software init method.

The new parameter is:
  - upload_authentication_file: the content must be the path of
    SSL key which must be used to make the user authentication in the
    Networkcache HTTP server.

It must be propagated to buildout command line, of course.

slapos/grid/SlapObject.py

@@ -49,7 +49,7 @@ class Software(object):
   """This class is responsible of installing a software release"""
   def __init__(self, url, software_root, console, buildout,
       signature_private_key_file=None, upload_cache_url=None,
-      upload_dir_url=None):
+      upload_dir_url=None, upload_authentication_file=None):
     """Initialisation of class parameters
     """
     self.url = url
@@ -62,6 +62,7 @@ class Software(object):
     self.signature_private_key_file = signature_private_key_file
     self.upload_cache_url = upload_cache_url
     self.upload_dir_url = upload_dir_url
+    self.upload_authentication_file = upload_authentication_file
 
   def install(self):
     """ Fetches buildout configuration from the server, run buildout with
@@ -86,15 +87,14 @@ class Software(object):
         'buildout:directory=%s' % self.software_path,]
 
       if self.signature_private_key_file or \
-          self.upload_cache_url or \
-            self.upload_dir_url is not None:
+          self.upload_cache_url or  self.upload_dir_url or \
+          self.upload_authentication_file is not None:
         buildout_parameter_list.append('buildout:networkcache-section=networkcache')
 
       if self.signature_private_key_file is not None:
         buildout_parameter_list.append( \
             'networkcache:signature-private-key-file=%s' % \
               self.signature_private_key_file)
-
       if self.upload_cache_url is not None:
         buildout_parameter_list.append( \
             'networkcache:upload-cache-url=%s' % \
@@ -103,6 +103,10 @@ class Software(object):
         buildout_parameter_list.append( \
             'networkcache:upload-dir-url=%s' % \
               self.upload_dir_url)
+      if self.upload_authentication_file is not None:
+        buildout_parameter_list.append( \
+            'networkcache:upload-authentication-file=%s' % \
+              self.upload_authentication_file)
 
       buildout_parameter_list.extend(['-c', self.url])
       bootstrapBuildout(self.software_path, self.buildout,